standard circular connector, T4112012041-000, TE Connectivity
Assembly Type: Electrical Connector, Connector System: Wire-to-Wire, Sealable: Yes, Connector & Contact Terminates To: Wire & Cable, Circular Connector Type: Receptacle, Factory Installed Backshell: With, Number of Positions: 4, Number of Power Positions: 0, Number of Signal Positions: 4, Contacts Preloaded: Yes, Voltage: 250 Vrms, O-Ring Material: Silicone, Shell Plating Material: Nickel, Shell Base Material: Copper Alloy, Circular Connector Insulation Material Type: Polyamide 66 GF25, Contact Current Rating (Max): 4 A, Reverse Gender: No, Circular Connector Contact Type: Socket, Mating Retention Type: Threaded Coupling, Polarization Code: A, Mating Alignment Type: Keyed, Circular Connector Shell Size: 20, Wire Size: 18 – 24 AWG, Wire Size: 0.82 – 0.2 mm², IP Dust Sealing Level: 6, Operating Temperature Range: -40 – 85 °C, Durability Rating: 100 Cycles, Circuit Application: Signal, Shielded: Yes, UL Flammability Rating: HB, Position Locations Omitted: 0
